Segment Information - Schedule of Financial Information by Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Segment Information
Revenue	$ 1,298	$ 1,257
Interest expense	4,693	5,037
Total non-interest expense and provision for tax	4,150	4,232
Net profit (loss)	30	(607)
Total assets	107,612	109,250
External Sources
Segment Information
Revenue	8,839	8,536
Adjustments / Eliminations
Segment Information
Interest expense	(1,189)	(1,329)
Total non-interest expense and provision for tax	(20)	(50)
Net profit (loss)	16	186
Total assets	2,927	2,898
Adjustments / Eliminations \| Internal Sources
Segment Information
Revenue	(1,193)	(1,192)
Finance Company \| Operating Segments
Segment Information
Interest expense	5,882	6,366
Total non-interest expense and provision for tax	2,823	2,697
Net profit (loss)	(758)	(1,498)
Total assets	99,080	101,563
Finance Company \| Operating Segments \| External Sources
Segment Information
Revenue	7,913	7,438
Broker-Dealer \| Operating Segments
Segment Information
Total non-interest expense and provision for tax	1,323	1,533
Net profit (loss)	717	671
Total assets	3,350	2,591
Broker-Dealer \| Operating Segments \| External Sources
Segment Information
Revenue	847	1,012
Broker-Dealer \| Operating Segments \| Internal Sources
Segment Information
Revenue	1,193	1,192
Charitable Organization \| Operating Segments
Segment Information
Total non-interest expense and provision for tax	24	52
Net profit (loss)	53	32
Total assets	2,196	2,140
Charitable Organization \| Operating Segments \| External Sources
Segment Information
Revenue	77	84
Other Segments \| Operating Segments
Segment Information
Net profit (loss)	2	2
Total assets	59	58
Other Segments \| Operating Segments \| External Sources
Segment Information
Revenue	$ 2	$ 2